To estimate the mass spectra of the doubly heavy tetraquarks \(QQ\bar{q}\bar{q}\) , one needs to determine the parameters in the ICMI model, such as the \(m_{ij}\)  and the coupling strength \(v_{ij}\) . Most of them can be obtained by fitting the experimental masses of ground-state mesons and baryons [1]}.
The parameters for quark-antiquark can be extracted [2]} and displayed in Table REF .
Since the spin-singlet state of \(s\bar{s}\)  and the spin-triplet state of \(b\bar{c}\)  are unknown yet experimentally, the parameters \(v_{s\bar{s}}\)  and \(v_{c\bar{b}}\)  are obtained via a similar strategy as shown in Ref. [3]}.
In Table REF , it is worth noting that \(v_{q_1\bar{q}_2}=v_{\bar{q}_1q_2}\)  and \(m_{q_1\bar{q}_2}= m_{\bar{q}_1q_2}\)  due to the same coupling strength and spatial structure.
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